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Rates of reaction

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Question 71

Figure 1 shows the volume of oxygen gas produced over time during the catalytic decomposition of hydrogen peroxide using manganese dioxide lumps.

Graph showing the volume of oxygen gas produced in cm³ on the y-axis against time in seconds on the x-axis. The curve for the manganese dioxide lumps starts at (0,0), rises steeply, and levels off to a horizontal line at exactly 60 cm³ by 120 seconds. The y-axis ranges from 0 to 80 cm³ and the x-axis ranges from 0 to 180 seconds.

On the graph in Figure 1, draw the curve you would expect to obtain if the experiment was repeated using an equal mass of manganese dioxide powder. All other conditions are kept the same.

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Rates of reaction Questions

  1. GCSE
  2. /Chemistry
  3. /Rates of reaction

Practise Edexcel GCSE Chemistry Rates of reaction with exam-style questions for Foundation and Higher tier. 166 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank